Underframe.



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UNDERFRAME. APPLICA'HON FILED MINE 25, 1914.

Patented Aliml 1:1; 1916a 5 SHEETS-SHEET l.

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UNDERFRAME. APPLICATION HLED JUNE 251 i914).

Patented Apml, 1916.

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UNDERFRAME.

APPLICATION Husol :une z5. 1914. LYQS, .Patented Apr. 11, i916.

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@#7265565 CJWZCZSQ? 5 gw @www m' Mifmwney .ffii-5. -v given '.must be reduced to 14:A inches or 15 inches l To all whom t may concern WERNER CLAsEn, oF nAvENron'L'ioWA, AssIGNoR rro THE Bn'rfrnivnonrv I.

' COMPANY, 0F BETTENDORF, IOWA, A CORPORATION 0F IOWA,

UNDERFRAME.

"Be it jknown that I, CLAUS J. IVERNER Grassina, a citizen of the United States of v 1} i&1nerica, and resident of Davenport, Scott county, Iowa, have invented a certain new 'fifaand useful Improvement in Underframes,

of which the following is a specification.

My invention relates to improvements in v'finetallic underframes for railway cars, and

is-directed more particularly to the construcftionthereof at the intersection of the body fbolsters and center sills. Y As is Well understood "fthe art, the longitudinal sills of a metallic underframe of high carrying capacity are by those skilled in afish-belly shape'to meet a physit'ifincreasing the strength-2967I se of the sill.

y .''Ihev greater the load 120.1;

f' capacity to be imposed on the sill, the greater the depths of the sill. In high sills `the depth would become -so theends could not clear the truck axles and at same time preserve the Master .A Car Builders established limits of Hoor, cen- '-25 hence the necessity height plate and couplercarrier heights; and ofreducing the vertical of the sill in the vicinity of the Y y'"tri1cks, bringing about the fish-belly form.

through the center j carried chiefly by v erly latter case they are too f through the center sill.

-It' has ordinarily tToI carry the load a sill is often 18 inches to30"inches deep at its center of length but at the bolster to properly clear` the truck ,and-maintain Master Car Builders regulation dimensions.

It necessarily follows that the vertical height of the body b'olster at`its intersection with the center sill is also limited to'about 14 or 15 inches and that a union of the two be effected, of a` nature to not exceed these dimensions. In underframeswherein the loadis concentrated on Vthe center sill,v the 4bolsters may safely be made of a size to permit passing same sill, but when the load is the side sills the bolsters must be suiliciently large and heavy to proptransmit the load to the trucks. In the large'to be passed either cut the bolster orl make it in vtwo parts, lpermitting the center sill to pass between, or to Ycut thezcenter .sills and permit the bolsters to pass between. u

My invention is directed to a construction wherein both the center sill and the bolster Specification of Letters Patent.

been the practice to4 Patented Apr. 11, 191e.

Application led June 25, 1914. Serial No. 847,206.

'are continuous unbroken members, the' bolster suflici'entl'y large and strong to properly function in a side load carrying under-l 'fiame and yet confining the dimensions of the members at their intersection in conformity with the Master Car Builders regulations.

This accomplish by the mechanism illustrated in the accompanying drawings, in whichy Figure I is ja top plan view of one end I of a steel underframe showing my improved method of intersecting a continuous center` sill by. a continuous Vbolster.l Fig. II'

is a side elevation of the bolster, showing the center sill in section. Fig. III is a side elevation of a center sill near one end thereof, showing the bolster in section. Fig. IV is a perspective of the intersecting portions of the center sill and body bolster. Fig. V 75V is a plan view similar to Fig. II, showing my improved constructionl as fjpplied to a double center sill. VI and VII.,l are modications of "my prov d construction,

in which .the bolster passes 4over the lcenter so sill at the intersectio instea'd of under.

Similar. reference numerals refer to similar parts throughout the several views.

The .flanged beam 1. to each end of which is riveted the metallic draft arms 2. 2.' forms 85 the center sill of a steel underframe. While one end only of tlie'sill is shown it is to be understood that both ends are finished alike. The ends of the flanged.- beam portion 1. are

reduced vertically, leaving the central por- Y tion thereof the full height of the original beam, thus producing a' fish-belly, or truss shapeV sill extending continuously from end sill 3 to a similar end vsill at the other` end of the underframe (not shown).4 'The con- 95 l tinuous one piece cast steel bolster .4 isof- I section and extends from side sill to side sill -5. The upperv chord of thebolster at its center of length'and inthe vicinity of its intersection with ,the center sill, is 10o i depressed or. notched out as at 6, while the lower chordlor edge of the center sill is depressed or notched out as at 7. 'The bolster is brought into vengagement with the re-l cessed portion of the center sill from the under side, with the recessed portion ofthe bolster engaging the upper unbroken portion of the center sill. lfVithl the members thus interlocked their upper and lower surfaces are brought in the saine planes.

Thr-.110.

reinforcing plate 8 extending across the holster depression is securely riveted to the bolster and center sill..4 y

ln underframes designed to carry all the load on the center sill, .the holsters merely functioning as cross bearers to support the i floor nailing stringers, can be relatively l tending from yside sil lightand small, to an extent that they can be safely and readily passed through the center sill at their intersection therewith, but in underframes f wherein the greater portion of the 'load is to be carried bythe side sills and transmitted to the trucks through the medium of' the holsters, these holsters must be made larger and heavier, to .an extent that they cannot be passed through the center sill. When such heavier and larger holsters were required, it has been customary, in the past, to resort to the huilt up type, that is, heavy, dee diaphragnis eX- o cener sill and from center sill to side sill, withl top and bottom splice plates. My `invention therefore is directed to maintaining continuous unvCI) ' dei'side of the holster, this cuplike upstandv broken members and yet employing a bolster suiiiciently large and heavy to properly and safely function as a load transmitting member. v

ln Fig. Vl show my improved construction as applied to a double center sill underframe wherein toV the ends of rolled beam sills 5)-9 are riveted the cast steel draft sills lll- 10. The general construction would in all respects he similar to that shown in F ig. l as. previously described, except as to the spacing of the draft sills madenecessary to meet the'double center sill. There wouldv he no change in the construction of the holster except the widening of the recessto accommodate the spacing yof the draft sills.

tion of my improved structure, which con sists in forming the recess in the bottom portion of the'holster l2 and upper portion of the center sill, ll, and applyingthe cover plate 13 to the top of the center sill although I would consider the former 'construct-ion as the preferred form.

lt'will he observed that by thus notching out and interlocking ,the center sill structure with the holster, l may utilize the center bearing le for the truck bolster to assist in tying the members together at their point of intersection. Asshown in Fig. lll, the preferred way of doin gthis is to fasten by rivets l5 the center bearing plate both to the underside ofthe center sill flanges as well as the underside of the bolster flanges, and form atl the vcenter of the bearing an upstanding cupv 1G which bears upon the uning part serving as usual to assist in centering the center bearingof the body bolster.

' lt will be seen that inithis way the upper ln Figs. Vl and VH l showamodificae sirenes member-of the body bolster bearing is utilized to assist in tying the center sill to the bolster. lt will be understood, of course, that where, as in `Fig, Vl, thenotch at the intersection ofthe members is formed in the holster; then the upscantling cup part'l will bear against the underside of the center sill structure. l l I 1What l claim vvas new is: l. ln an underframe for railway cars, the

sills and body holsters, said center sills extending from end sill to end sill, said bolster --colnbination of end sills, side sills, center extending from side lsill to side sill, and in upper side at the intersecting point with the center sillof practically half the depth of its vertical dimension, and a tie plate spanning said recess and secured'to said holster.

2. ln an underframe for railway cars, the combination of a continuous center sill extending from end to end of car, body bol-I sters extending continuously in one piece from side to side of the car interlocked by internotchi-ng with the said center sill and having their top and bottom surfaces, at the point of intersection in, practically, the saine horizontal plane, and a tie plate spanning tlie notch in the member recessed in its upper surface, and a center bearing plate spanning the notch in the member recessed in its lower surface.

3. ln an underframe for railway cars the combination of end sills and side sills, coni tinuous center sills extending from end sill to end sill provided with recesses for the passage of body holsters therethrough, continuous one piece body holsters extending from side sill to side sill provided with re cesses for the passage of theusaid center sill therethrough, and a cover plate secured to the upper surfaces of said members at the point of intersection, and a center bearing plate secured to the lower surfaces of said members at the pointlof intersection.

, 4. ln an underframe for railway cars, the combination of a flanged beam, provided with metallic draft arms securedltoitlie ends ythereof and extending from'endv to endl of vplates, spanning said recess and secured to ,saidbolsters and draft' arms; j

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5. In e cer under-frame, the. combination the underside of the member which is l@ of a, center sill member, body bolster mem-l notched en its upper side. ber intersecting the saine, the two members Signed by -n'ie at Bavenport, owa, this being rigidly interlecked by 'inter-notching' 23rd day of June, 19M.

them at their point of'intersecion ev cen- Q v X ter bearing for the body bolster riileted to .CLUU J" WERNER CLASEU' the undersides of both of Suid 'members out- Witnesses:

Sidev the point of intersection and having an YV. G. QUAYLE,

up'standing .central portion bearing upon 'HENRY REGENNITTER. 

